My advice would be only share your recovered travelling dead time with your employer - don't hand it all over . . I long ago realised I'm a workaholic - which wasn't so much of an issue in my thirties when I was fitter, freelance, and paid by the hour - now I'm in my sixties and salaried again I have to really hard to stop myself working beyond my hours when I work from home. I have kept a room in my house as an actual office for the last 30 years or so, but these days I prefer to commute for around 2 hours a day in exchange for more rigid start and end times . . I still believe it's a mortal sin to quit when you are "on a roll", but I temper that with how much it is appreciated in the form of Overtime pay enhancement or Time off in Lieu; if you don't get overtime, I believe you have to think of it as underpay and judge your employer accordingly . . Your mileage may vary of course, but that's my two cents-worth generally . .
A few are great. I am small. Together we are the Universe.